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Noaman S, Goh C, Al-Mukhtar O, Seman M, Mulligan A, Zakhem B, Brazzale A, Walton A, Stub D, Cox N, Chan W. Comparison of Short-term Clinical Outcomes of Proximal Versus Distal Culprit Lesions in ST-Elevation Myocardial Infarction. Heart Lung Circ 2016. [DOI: 10.1016/j.hlc.2016.06.399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Goh C, Noaman S, Jumaah H, Zakhem B, Brazzale A, Walton A, Stub D, Cox N, Chan W. Short-term Outcomes of Single Versus Multivessel Coronary Artery Disease in ST-Elevation Myocardial Infarction Complicated by Cardiogenic Shock. Heart Lung Circ 2016. [DOI: 10.1016/j.hlc.2016.06.460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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53
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Nathan J, Walton A, Stub D, Duffy S. TAVI Conduction Problems: Is it all About the Valve? Heart Lung Circ 2016. [DOI: 10.1016/j.hlc.2016.06.469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Eikelis N, Hering D, Marusic P, Sari C, Walton A, Phillips S, Lambert E, Duval J, Krum H, Lambert G, Esler M, Schlaich M. The effect of renal denervation on endothelial function and inflammatory markers in patients with resistant hypertension. Int J Cardiol 2015; 188:96-8. [DOI: 10.1016/j.ijcard.2015.04.041] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Accepted: 04/03/2015] [Indexed: 11/26/2022]
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Meredith I, Walton A, Brecker S, Pasupati S, Blackman D, Manoharan G. Early results following transcatheter aortic valve implantation with a repositionable self-expanding bioprosthesis. Heart Lung Circ 2015. [DOI: 10.1016/j.hlc.2015.06.626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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56
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McLellan A, Schlaich M, Taylor A, Prabhu S, Hering D, Hammond L, Marusic P, Duval J, Sata Y, Ellims A, Peter K, Shaw J, Walton A, Kalman J, Kistler P. Reverse cardiac remodelling following renal denervation - atrial electrophysiologic and structural changes associated with blood pressure lowering. Heart Lung Circ 2015. [DOI: 10.1016/j.hlc.2015.06.321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Gustafsson F, Malek F, Neuzil P, Reddy V, Sondergaard L, Walton A, Kaye D. Percutaneous Implantation of a Novel Interatrial Shunt Device in Patients with Heart Failure and Preserved or Mildly Reduced Ejection Fraction: Initial Results of a Pilot Trial. J Heart Lung Transplant 2014. [DOI: 10.1016/j.healun.2014.01.243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Billingsley DJ, Lee AJ, Johansson NAB, Walton A, Stanger L, Crampton N, Bonass WA, Thomson NH. Patchiness of ion-exchanged mica revealed by DNA binding dynamics at short length scales. NANOTECHNOLOGY 2014; 25:025704. [PMID: 24334563 DOI: 10.1088/0957-4484/25/2/025704] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The binding of double-stranded (ds) DNA to mica can be controlled through ion-exchanging the mica with divalent cations. Measurements of the end-to-end distance of linear DNA molecules discriminate whether the binding mechanism occurs through 2D surface equilibration or kinetic trapping. A range of linear dsDNA fragments have been used to investigate length dependences of binding. Mica, ion-exchanged with Ni(II) usually gives rise to kinetically trapped DNA molecules, however, short linear fragments (<800 bp) are seen to deviate from the expected behaviour. This indicates that ion-exchanged mica is heterogeneous, and contains patches or domains, separating different ionic species. These results correlate with imaging of dsDNA under aqueous buffer on Ni(II)-mica and indicate that binding domains are of the order of 100 nm in diameter. Shorter DNA fragments behave intermediate to the two extreme cases of 2D equilibration and kinetic trapping. Increasing the incubation time of Ni(II) on mica, from minutes to hours, brings the conformations of the shorter DNA fragments closer to the theoretical value for kinetic trapping, indicating that long timescale kinetics play a role in ion-exchange. X-ray photoelectron spectroscopy (XPS) was used to confirm that the relative abundance of Ni(II) ions on the mica surface increases with time. These findings can be used to enhance spatial control of binding of DNA to inorganic surfaces with a view to patterning high densities arrays.
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Shah N, Duffy S, Nathan J, Dick R, Walton A. Permanent Pacemaker Implantation Rate pre- and post-CoreValve Accutrak Transcatheter Aortic Valve Implantation Delivery System. Heart Lung Circ 2013. [DOI: 10.1016/j.hlc.2013.05.355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Shah N, Dick R, Marasco S, Duffy S, Walton A. Transcatheter Aortic Valve Implantation in a Private Hospital Setting. Heart Lung Circ 2013. [DOI: 10.1016/j.hlc.2013.05.375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Sharma R, Tan J, Dick R, Duffy S, Walton A. Medium Term Follow Up of Medtronic Core Valve: Melbourne Experience. Heart Lung Circ 2013. [DOI: 10.1016/j.hlc.2013.05.343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Stub D, Duffy S, Dick R, Marasco S, Walton A. Low Risk of Stroke is Achievable After Transcatheter Aortic Valve Implantation (TAVI): A Two-Centre Australian Experience. Heart Lung Circ 2013. [DOI: 10.1016/j.hlc.2013.05.340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Shaw J, Loane P, Andrianopoulos N, Brennan A, Walton A, Yip T, New G, Clark D, Duffy S, Reid C. Utility of Rotational Atherectomy and Outcomes Over an Eight Year Period. Heart Lung Circ 2013. [DOI: 10.1016/j.hlc.2013.05.384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Hering D, Walton A, Lambert G, Marusic P, Lambert E, Krum H, Esler M, Schlaich M. The Effect of Renal Nerve Ablation on Blood Pressure and Sympathetic Activity One Year Post Procedure. Heart Lung Circ 2013. [DOI: 10.1016/j.hlc.2013.05.064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Walton A, Ergin M, Harkness DD. Carbon-14 concentrations in the atmosphere and carbon dioxide exchange rates. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/jc075i015p03089] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Sharma R, Yang P, Nathan J, Dick R, Duffy S, Walton A. Outcomes of a Newly Established TAVI Program. Heart Lung Circ 2012. [DOI: 10.1016/j.hlc.2012.05.414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Nathan J, Sharma R, Thomson H, Dick R, Walton A, Duffy S. Depth of Transcatheter Aortic Valve Implantation Does Not Correlate with Aortic Regurgitation or Need for Permanent Pacing. Heart Lung Circ 2012. [DOI: 10.1016/j.hlc.2012.05.378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Stub D, Andrianopoulos N, Brennan A, Loane P, Sharma R, Ajani A, New G, Walton A, Black A, Clark D, Dart A, Farouque O, Duffy S. Evaluating the Performance of the CRUSADE Bleeding Risk Score for Patients with Acute Coronary Syndrome Undergoing Percutaneous Coronary Intervention. Heart Lung Circ 2012. [DOI: 10.1016/j.hlc.2012.05.386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Stub D, Andrianopoulos N, Brennan A, Loane P, Sharma R, Ajani A, New G, Walton A, Black A, Clark D, Farouque O, Dart A, Duffy S. Impact of Bleeding on Outcomes in Patients with Acute Coronary Syndrome Undergoing Percutaneous Coronary Intervention. Heart Lung Circ 2012. [DOI: 10.1016/j.hlc.2012.05.395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Chan W, Andrianopoulos N, Brennan A, Clark D, Ajani A, Sebastian M, New G, Stub D, Walton A, Dart A, Reid C, Duffy S. Predictors and Outcomes of Peri-procedural Myocardial Infarction Following Percutaneous Coronary Intervention: Insights from a Multi-centre Australian Registry. Heart Lung Circ 2011. [DOI: 10.1016/j.hlc.2011.05.354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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71
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Cheng L, Walton A, Conway H, James D, Canning F, White P, Franklin S, Harrison V, Ezsias A, Ali E, Ratcliffe S, Qureshi R. P47 How to reduce Did Not Attend (DNA) rates and achieve treatment targets in a NHS Foundation Hospital in the UK. Br J Oral Maxillofac Surg 2010. [DOI: 10.1016/s0266-4356(10)60138-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Walton A, Flouri E. Contextual risk, maternal parenting and adolescent externalizing behaviour problems: the role of emotion regulation. Child Care Health Dev 2010; 36:275-84. [PMID: 20438475 DOI: 10.1111/j.1365-2214.2009.01065.x] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND The objective of this study was to test if emotion regulation mediates the association between mothers' parenting and adolescents' externalizing behaviour problems (conduct problems and hyperactivity). The parenting dimensions were warmth, psychological control and behavioural control (measured with knowledge, monitoring and discipline). Adjustment was made for contextual risk (measured with the number of proximal adverse life events experienced), gender, age and English as an additional language. METHOD Data were from a UK community sample of adolescents aged 11-18 from a comprehensive school in a disadvantaged area. RESULTS At the multivariate level, none of the parenting variables predicted hyperactivity, which was associated only with difficulties in emotion regulation, contextual risk and English as a first language. The parenting variables predicting conduct problems at the multivariate level were warmth and knowledge. Knowledge did not predict emotion regulation. However, warmth predicted emotion regulation, which was negatively associated with conduct problems. Contextual risk was a significant predictor of both difficulties in emotion regulation and externalizing behaviour problems. Its effect on conduct problems was independent of parenting and was not via its association with difficulties in emotion regulation. CONCLUSIONS The findings add to the evidence for the importance of maternal warmth and contextual risk for both regulated emotion and regulated behaviour. The small maternal control effects on both emotion regulation and externalizing behaviour could suggest the importance of paternal control for adolescent outcomes.
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Chan W, Andrianopoulos N, Ajani A, Clark D, Johnston R, Finlay A, Walton A, Brennan A, Shaw J, Reid C, Dart A, Duffy S. The Effect of Smoking on Clinical Outcomes in Patients Taking Clopidogrel Following Percutaneous Coronary Intervention. Heart Lung Circ 2010. [DOI: 10.1016/j.hlc.2010.06.1027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Ellims A, Walton A, Duffy S, Thomson H, Dart A, Wong C. Is Corevalve Performance Maintained After 12 Months? A Comparative Study Versus Open Aortic Valve Replacement. Heart Lung Circ 2010. [DOI: 10.1016/j.hlc.2010.06.990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Butler M, Walton A, Johnstone R, Duffy S, Wong C. Echocardiographic Assessment of Aortic Regurgitation Post CoreValve® Implantation. Heart Lung Circ 2010. [DOI: 10.1016/j.hlc.2010.06.499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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